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  <meta content="Ralph Grishman" name="author">
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<h1>
<font face="Arial Alternative"><font color="#3333ff">Jet</font></font></h1>
Jet, the Java Extraction Toolkit, provides a set of tools for natural
language
analysis and specifically to support information extraction.&nbsp; The
tools in the toolkit can be used in three ways:
<ul>
  <li>through tool control scripts, which support the simple,
unconditional
application
of a series of tools to selected portions of a message</li>
  <li>in some cases, as separate, stand-alone tools -- 'Jet Utilities'<br>
  </li>
  <li>through the Java API, which allows the combination of the tools
with
maximum
flexibility</li>
</ul>
<a href="basics.html">Basic Concepts of Jet</a>
<p><a href="jet-intro.html">An Introduction to Jet:  Interactive Use</a></p>
<p><a href="tools.html">Jet Tools:&nbsp; Annotators and Linguistic
Resources</a><br>
</p>
<ul>
  <li><a href="tokenizer.html">Tokenizer</a></li>
  <li><a href="sentenceSplitter.html">Sentence Splitter</a><br>
  </li>
  <li><a href="lexicon.html">Lexicon Lookup</a></li>
  <li><a href="POStagger.html">Part-of-speech tagger</a></li>
  <li><a href="nameTagger.html">Name tagger</a></li>
  <li><a href="onoma.html">Onomasticon (Name dictionary)</a></li>
  <li><a href="chunker.html">Noun group chunker</a> </li>
  <li><a href="parser.html">Parser</a></li>
  <li><a href="statParser.html">Probabilistic Constituent Parser</a> </li>
  <li><a href="depParser.html">Dependency Parser</a> </li>
  <li><a href="patterns.html">Pattern Matcher</a></li>
  <li><a href="refres.html">Reference Resolver</a></li>
  <li><a href="timex.html">Time Expression Tagger</a><br>
  </li>
</ul>
<p></p>
<p><a href="installing.html">Installing and Running Jet</a><br>
</p>
<ul>
  <li><a href="usingAPI.html">Using the Jet API</a></li>
</ul>
<p></p>
<p><a href="control.html">Controlling Your Jet</a><br>
</p>
<ul>
  <li><a href="console.html">Jet Console</a></li>
  <li><a href="scripts.html">Jet Scripts</a></li>
</ul>
<p><a href="utilities.html">Jet Utilities</a><br>
</p>
<ul>
  <li><a href="ProcessDocuments.html">ProcessDocuments</a></li>
  <li><a href="BIOWriter.html">BIOWriter</a></li>
  <li><a href="CorefEval.html">CorefEval</a></li>
  <li><a href="CorefView.html">CorefView</a></li>
  <li><a href="CollectionView.html">CollectionView</a></li>
  <li><a href="AnnotationTool.html">AnnotationTool</a><br>
  </li>
  <li><a href="AnnotateCollection.html">AnnotateCollection</a></li>
  <li><a href="trainHMMNameTagger.html">train HMM Named Entity tagger</a></li>
  <li><a href="NEscorer.html">evaluate Named Entity tagger</a></li>
</ul>
<a href="ACEutilities.html">ACE-related Functionality</a><br>
<ul>
  <li><a href="ACE.html">ACE extraction</a></li>
  <li><a href="ACEstructures.html">ACE Semantic Structures</a></li>
  <li><a href="LearnRelations.html">Learn ACE Relations</a> </li>
  <li><a href="RelationScorer.html">Score ACE Relations</a> </li>
  <li><a href="TrainEventTagger.html">Train Event Tagger</a> </li>
  <li><a href="EventTagger.html">Event Tagger (given perfect entities)</a> </li>
  <li><a href="EventScorer.html">Score ACE Events</a>
  <li><a href="APFtoXML.html">generate in-line XML name tags from APF</a></li>
</ul>
<p>
Tag Sets<br>
</p>
<ul>
  <li><a href="JetPOS.html">Jet Part-of-speech Tags</a></li>
  <li><a href="PennPOS.html">Penn Part-of-speech Tags</a></li>
</ul>
<a href="annotations.xml">Annotation types</a><br>
<p></p>
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